Design of vibration sensor based on magnetic levitation effect

WANG Xiao-fei; LI Kai; HAN Yan; YU Ming; TAO Lang-zhou

doi:10.13873/j.1000-97872013.10.040

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Design of vibration sensor based on magnetic levitation effect

更新时间：2025-09-11

- Design of vibration sensor based on magnetic levitation effect
- Vol. 32, Issue 10, Pages: 61-64(2013)
- 作者机构：
  
  1. 中北大学信息探测与处理技术研究所
  2. 中北大学电子测试技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872013.10.040
  CLC： TP212
- Published：2013
- 稿件说明：
移动端阅览
[1]王晓飞,李凯,韩焱,于明,陶浪舟.基于磁悬浮效应的振动传感器设计[J].传感器与微系统,2013,32(10):61-64.

WANG Xiao-fei, LI Kai, HAN Yan, et al. Design of vibration sensor based on magnetic levitation effect[J]. 2013, 32(10): 61-64.
[1]王晓飞,李凯,韩焱,于明,陶浪舟.基于磁悬浮效应的振动传感器设计[J].传感器与微系统,2013,32(10):61-64. DOI： 10.13873/j.1000-97872013.10.040.

WANG Xiao-fei, LI Kai, HAN Yan, et al. Design of vibration sensor based on magnetic levitation effect[J]. 2013, 32(10): 61-64. DOI： 10.13873/j.1000-97872013.10.040.

摘要

应用磁悬浮原理把永磁体组件组合成一种振动传感器

用ANSYS对永磁体进行物理磁力仿真

计算出悬浮磁力影响因素的主次顺序。根据磁路定理推导出悬浮磁力的表达式

通过ANSYS数值仿真验证磁力公式

发现在微小位移范围内理论结果与仿真结果比较吻合

并且悬浮磁铁的振幅和所受磁力呈线性关系。同时推导出传感器系统的二阶动力学方程。用标准激振器标定传感器的灵敏度为213V·s·m-1

高于传统磁电式传感器的灵敏度。用此传感器采集低频振动信号

该传感器可以很好地应用于低频振动信号的采集。

Abstract

A vibration sensor is made of permanent magnet components based on levitation theory

magnetic force simulation on permanent magnet component is carried out applying ANSYS

the optimal combination of factor order which affects the magnetic force can be found.According to theory of magnetic circuits

magnetic force formula can be derived

and magnetic force formula is verified by ANSYS simulation

it can be found that within the area of micro displacement

simulation value is fit to theoretical value

and there is a linear relationship between amplitude and magnetic force of hybrid magnet.Second order equations in dynamics of sensor system can be derived.After testing of the vibration sensor through standard vibrator

the sensitivity is 213 V·s·m-1

which is higher than traditional magnetoelectric sensor.The sensor is used for collecting low frequency vibration signal very well.

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references

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磁悬浮效应检振系统设计 [J]. 江东,高颖,杨嘉祥. 电机与控制学报 . 2008(03)

地震检波器的发展方向 [J]. 刘光林,刘泰生,高中录,李刚,姚光凯. 勘探地球物理进展 . 2003(03)

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